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More Information: Rhododendron 'Thunder'


R. 'Thunder' 
Photo: Paul Lawry

Predominant Flower Color:  Purple

Flower/Truss Description:  Flower openly funnel-shaped, wavy lobes, 1" across, purple fading to white. Ball-shaped trusses of 3-5.

Fragrant:  No

Bloom Time:  Early Midseason

Foliage Description / Plant Habit:  Leaves elliptic, flat to convex, apiculate apex, cuneate base, 1" long. Foliage is dark mahogany from November through end of blooming period. Dense plant habit.

Height:  3  feet in 10 years.

Cold Hardiness Temp:  -20F  ( -29C)

Parentage  (Seed Parent x Pollen Parent):  PJM x PJM

Elepidote (E) or Lepidote (L):  L

Hybridizer:  Mezitt

Registration Reference:  ARS 881

Note: Bloom time and 10 year height information are approximate and can vary dependent on weather and growing conditions.
Cold hardiness temperature is also an approximate value.


American Rhododendron Society
P.O. Box 214, Great River, NY 11739
Ph: 631-533-0375   Fax: 866-883-8019   E-Mail: member@arsoffice.org
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